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v160521
– **Bug Fix**: Fixed a bug that, in some scenarios, resulted in “PHP Fatal error: Undefined class constant ‘CACHE_PATH_NO_PATH_INDEX'”. This also affected the Cache Statistics feature (Comet Cache Pro), resulting in a blank panel when hovering over the Cache Stats button in the menu bar. See [Issue #752](https://github.com/websharks/comet-cache/issues/752).
– **Bug Fix**: When the PHP OPCache extension is active, the OPCache is now cleared when a WordPress plugin is upgraded, activated, or deactivated. This works around an issue that could produce a fatal error when the PHP OPCache contains cached PHP code that conflicts with new PHP code introduced by an update. See [Issue #740](https://github.com/websharks/comet-cache/issues/740).
– **Enhancement** (Pro): It’s now possible to disable the WordPress Admin Toolbar when Logged-In User Caching is enabled with a new option in _Comet Cache → Plugin Options → Logged-In Users → Disable the Admin Toolbar for Logged-In Users & Comment Authors?_ Props @renzms and @KTS915. See [Issue #690](https://github.com/websharks/comet-cache/issues/690).
– **Enhancement**: The the option to automatically clear the cache for Custom Term Archive Views (see _Comet Cache → Plugin Options → Automatic Cache Clearing → Auto-Clear “Custom Term Archives” Too?_) is now enabled by default. This feature was previously disabled by default, which lead to confusion about why those cache files were not being cleared automatically when a Custom Post Type with a Custom Term Archive View was being used. Props @renzms. See [Issue #693](https://github.com/websharks/comet-cache/issues/693).
– **Enhancement** (Pro): A new filter allows overriding the default behavior to clear the user cache upon login and logout when caching for Logged-In Users is enabled. See [this article](https://cometcache.com/r/kb-article-how-can-i-prevent-the-user-cache-from-being-cleared-upon-login-or-logout/) for details. Props @KTS915. See [Issue #756](https://github.com/websharks/comet-cache/issues/756).